baber/WOPTO huggingface dataset:
Patent GB-588932-A (GB)
Title: Improvements relating to transporter mechanism for photographic film
IPC: G03B23/12
Filed: 1944-12-04
Abstract: 588,932. Winding photographic films. PULLIN OPTICAL CO., Ltd., and BAIGENT, E. W. Dec. 4,1944, No. 24240. [Classes 97 (i) and 98 (i)] A mechanism in which photographic film is wound in steps from a feed spool to a take-up spool, past a projection or framing aperture, is provided with a clamping device for holding the film after a predetermined feeding movement, which movement can be varied by the setting of a manually-operated member. In the form shown, the film is wound from a spool 6 over a roller 23, both shown in section in Fig. 5, through the gate, over a sprocket 10 on to a spool 9, both of the latter being shown in section in Fig. 6. To enable the spool 6 to be readily detached, its projecting end 13 engages an openended slot in the bracket 5. A pin 21 projecting from the spring- loaded, retractable, rewinding knob 14 engages in a bore at the opposite end of the spool. A transverse key 19 attached to the knob transmits the drive from the knob to the spool. A clip 22 holds the end of the film. The winding knob 11 drives the spindle 34 through a coned portion 35 to which the sprocket is secured by a clamping nut 36. The spindle 42 is driven by gearing 39, 40, 41 from the winding knob and the spool 9 is driven therefrom by a friction spring 43. A clip 38 holds the end of the film. In the gate, the film passes between glass plates, one attached to the rear gate member and one, 24, pressed in contact with it while the film is stationary by pivoted arms 44. The pressure is provided by a cam 47 acting on the transverse member 46. The cam is secured to a spindle 49 carrying, at its outer end, an arm 53 with a toe forced by a spring 51 into one of two diametrically opposite slots in the periphery of the winding knob after winding one frame. A pin 61 is provided in the winding knob which can be forced into one of the slots by the action of a cam track in the inner face of the end cap 64 when the latter is rotated. This closes the slot and provides a double length film feed. To commence winding, the knob 11 is forced inwardly on a epline and the toe on the lever 53 is forced out of the slot by wedge action. Pins 58 on the back of gear 39 co-operate with cam tracks on a block 60 in the bracket 7 to force the knob 11 out as it is rotated so that the lever 53 may engage the next slot in the winding knob. Alternative detachable rear gate members with apertures corresponding to the frame sizes dealt with by the winding mechanism may be attached by sliding behind lugs or on to hinge pins. The glass plate' 24 is large enough to accommodate the larger frame size.
Patent GB-672660-A (GB)
Title: Improvements relating to internal combustion power plants
IPC: F02K3/02
Filed: 1948-09-15
Abstract: 672.660. Jet propulsion plant. DE HAVILLAND ENGINE CO., Ltd., HALFORD, F. B., MOULT, E. S., and COCKBURN, D. M. Oct. 12, 1949 [Sept. 15, 1948], No. 24247/48. Class 110(iii) in a gas turbine jet propulsion plant, coaxially mounted axial-flow and centrifugal compressors 10, 11 are driven independently by turbines 13, 12 only part of the air from the axial flow compressor 10 being fed to the centrifugal compressor 11, the rest being byepassed to the propulsive nozzle 22. The stream of air may be divided before the last stages of the compressor 10, Fig. 1, or after the last stage of this compressor, Fig. 2 (not shown). The byepassed air may mix with the exhaust gases, Fig. 1, or be discharged direct to the atmosphere through an annular nozzle arranged around the jet pipe 20, Fig. 3 (not shown), the nozzles terminating together or either nozzle projecting beyond the other according to design requirements. Heat-conducting or heat-insulating walls may be arranged between air and exhaust gas streams. In a further arrangement, Fig. 4 (not shown), the byepassed air is discharged through two nozzles arranged on both sides of the exhaust gas nozzle. A free-wheel clutch is provided between compressors when the axial-flow compressor is used for starting, alternatively a speed-responsive clutch is provided when the centrifugal compressor is so used. An alternative arrangement provides for contra-rotating compressors. Fuel may be burned in the byepassed air during take-off. The proportion of air that is byepassed may be varied manually or automatically by a variable orifice where the air issues to the atmosphere or into the exhaust gases. The arrangement is stated to be applicable to propeller turbine engines. Specification 471,368, [Group XXXIII], is referred to.
Patent GB-1193671-A (GB)
Title: Chemical Products and Processes for the Preparation thereof
Inventor: BONNETT RAYMOND
IPC: C09B47/00
Filed: 1967-05-25
Abstract: 1,193,671. Tetrabenzoporphyrin derivatives. R. BONNETT. 24 May, 1968 [25 May, 19671, No. 24276/67. Heading C4P. Metal-free or metal-containing porphyrin compounds of Formula I in which R 1  and R 2  which may be the same or different, and are straight or branched chain alkyl groups of 1-4 carbon atoms or a cycloalkyl group of 5-10 carbon atoms may be prepared by heating a substituted isoindolenine of Formula II in which R 1  and R 2  are as above and R 3  and R 4  are straight or branched chain alkyl groups of 1-4 carbon atoms and one of them may be hydrogen with a free metal or a metal compound followed by optional demetallization. In par. ticular octamethyltetrabenzporphyrin and its complexes with Mg, Zn, Cu, Fe, Co, Ni, Mn, Cr, and Sn are specified, the metals may be used as free metal or in the form of oxide, hydroxide, carbonate or metal salt of an organic acid, e.g. acetate. The reaction may be carried out in a sealed tube, at 250-450‹ C., in presence of a solvent, e.g. nitrobenzene, 1,2,4-trichlorobenzene, removal of metal from metal complexes being effected by dissolving in hydrochloric acidsulphuric acid mixture. Pyridine may be used to extract the product.
Patent GB-282898-A (GB)
Title: Improvements in connection with the mounting of electric fuses
IPC: H01H85/20
Filed: 1926-10-01
Abstract: 282,898. English Electric Co., Ltd., and Pooley, A. M. Oct. 1, 1926. Fusible cut-outs; fuse-boxes.-A cartridge fuse 12 is enclosed in a box formed of insulating plates 4, 5, held together by an external metal frame comprising end plates 1 and tie rods 3. Lead-in terminals 15 pass through insulating bushes 16, 17 and support the cartridge. Feet 10 are secured to the lower pair of rods 3 with insulation interposed, and a lid is secured by eye bolts surrounding the upper pair of rods 3 (the upper rods and lid not being shown in Fig. 1).
Patent GB-995703-A (GB)
Title: Improvements in semiconductive devices
IPC: H01L29/76
Filed: 1963-06-19
Abstract: 995,703. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 19, 1963 [June 29, 1962], No. 24302/63. Drawings to Specification. Heading H1K. A semi-conductor triode comprises a base region of semi-conductive material in contact with emitter and collector regions of semiconductive material having energy band gaps different from that of the base region, in which the base region is of the same conductivity type as at least one of the emitter and collector regions. A typical device consists of gallium arsenide emitter and collector regions on opposed faces of a germanium base region, all three regions being of N-type. The germanium region is a few hundred angstroms thick and contacts a [111] A crystallographic plane of the emitter region and a [111] B plane of the collector region. In operation, with the emitter negative and collector positive hot electrons from the emitter junction cross to the higher impedance collector junction to produce power amplification as in a conventional transistor. Operation is superior at low temperatures which reduce electron scattering. The device is made by vapour deposition of germanium and gallium arsenide successively on a [111] A crystallographic plane of an N-type gallium arsenide wafer, each zone being doped with from 10<SP>14</SP>-10<SP>16</SP> donor atoms/cc. A similar device may consist of P-type material throughout. Other alternatives suggested are the substitution of silicon for germanium and the interchanging of the gallium arsenide and germanium regions.
Patent GB-380241-A (GB)
Title: Improvements in lift-boats for submarine vessels
IPC: B63G8/41
Filed: 1931-08-29
Abstract: 380,241. Buoyant life-saving chambers. MANNELL, C. A., Plain-an-Guarry, near Marazion, Cornwall. Aug. 29, 1931, No. 24320. [Class 68 (i).] The enclosed lifeboat A3 carried. on the deck of the submarine is internally framed by circular transverse ribs which with the inner skin and the end bulkheads provide a number of watertight compartments. A door A on the top of the boat can be swung back on the hinge l<3> against the support c<1>. The lifeboat is provided at the bottom with a central tube P which is provided with a movable cap e<2> which screws on to the fitting q3 on the skin of the submarine. The top of the tube P is closed from the interior of the lifeboat by the screwed door f<3>. When the lifeboat is to be used, the crew enter the craft through the tube P. The door f<3> is closed and the cap e<2> is unscrewed from the fitting q<3> by the hand-wheel b<3> which at the same time screws down the door f<3> and brings a washer g<2> against the central aperture in the door f<3>. The boat is finally released from the submarine by turning handles o which rotate levers d<3> with terminal balls e<1> out of contact with brackets mounted on the shell of the submarine.
Patent GB-750518-A (GB)
Title: Improvements in or relating to a process of sintering and roasting pellets and briquettes of iron oxide
IPC: C22B1/24
Filed: 1953-09-02
Abstract: <PICT:0750518/III/1> Iron ores capable of exothermic combustion and comprising a major proportion of Fe3O4 are pelleted or briquetted and roasted as a stationary charge by heating one surface of the charge to about 1200 DEG C. and thereafter discontinuing the heat supply and drawing regulated quantities of air through the charge thereby causing a heat zone at a temperature of about 1200 DEG C. to proceed through the charge thereby converting the Fe3O4 to Fe2O3 and any sulphur to sulphur dioxide.  The exhaust gases may be used for drying and pre-heating new crude pellets or briquettes.  Pellets of 10 to 20 mm. size are preferred.  A suitable shaft furnace is shown in the Figure wherein 1 indicates the insulated shaft furnace rotatable about a pivot 7 containing a grate 4 to support the iron oxide pellets 3 which are charged through an opening 2.  6 indicates the burner for the initial heating and draught is caused by suction through pipe 5.  The initial heating is preferably effected to the top of the stationary charge with downward suction of air but when the layer of pellets or briquettes is about 50 cm. or less heating may be effected at the bottom and air suction at the top.
Patent GB-264131-A (GB)
Title: Improvements in and relating to the manufacture of intaglio formes, plates and cylinders
IPC: G03F5/24
Filed: 1926-10-01
Abstract: 264,131. Hamburger Fremdenblatt, Broschek, & Co. Jan. 11, 1926, [Convention date]. Photo-mechanical printing -surfaces.-In a process for making diapositives combining text and picture illustrations for producing intaglio printing-blocks by a single etching operation, the text is applied to a matt-transparent text carrier; the picture diapositives are produced on transparent matt-surface films, cut out and trimmed, and mounted on the text carrier (which itself is preferably mounted on a glass support), by means of a medium capable of dissolving the base of the picture diapositives but which will not detrimentally affect the transparency; and the parts of the text carrier bearing the text are made transparent by treatment with a varnish.
Patent GB-1319940-A (GB)
Title: Device for removing packaging bags in stacks from a collector  located downstream of the delivery drum of a packaging bag  machine
IPC: B65H31/30
Filed: 1972-05-24
Abstract: 1319940 Removing stacks of bags from machines PAPIER-INDUSTRIE SOLINGEN GmbH 24 May 1972 [1 June 1971] 24347/72 Heading B5D A device for removing a stack of bags 6 from a collector 7 located downstream of a delivery drum 2 of a packaging bag machine comprises a U-shaped gripper 22 slidably mounted in a rotatably displaceable frame-shaped arm 21 and operable by means of a cam-operated lever arm 29. The delivery drum 2 has three circular grooves 4, 3, 5 which respectively accommodate the bent arm 8 of the collector 7 and the bent up ends of the arms of the U-shaped gripper 22 in its initial position. The frame shaped arm 21 is pivotally mounted between two brackets 18, (19) and is operated by means of an eccentric disc 9 via a connecting rod 28. The disc 9 is driven by means of a pinion 12 mounted on the shaft 11 of the drum 2 via a reduction gearing 10. The gripper 22 is slidably guided in one end wall of the frame-shaped arm 21 and is biased towards the other end wall by helical springs (23, 24). The gripper is opened in its initial and final positions by the lever arm 29 which engages the web of the U-shaped gripper and is operated by a rotatable cam 13 against the action of a helical spring 32.
Patent GB-659697-A (GB)
Title: Improvements in or relating to flint-receiving tubes for pyrophoric lighters
IPC: F23Q2/48
Filed: 1949-09-22
Abstract: 659,697. Frictional lighters. ZIPPO MANUFACTURING CO. Sept. 22,1949, No. 24366. Convention date, Oct. 12, 1948. [Class 75(iii)] The flint tube 8 of a lighter is formed of a non-ferrous metal, e.g. brass or copper, and is counterbored at one end to receive a hard metal bushing 14, the outer end of which is substantially flush with the outer end of the tube. The hard bushing, which may be split to facilitate insertion, prevents the tube, which is formed of soft, rust-resisting metal, from being worn into distorted form by the flint during use. The bushing may be formed of a hard steel plated with a rust-resisting material, e.g. zinc, or may be formed of stainless steel containing 18 per cent chromium and 8 per cent nickel. The lighter may be of the form described in U.S.A. Specification 2,032,695.
Patent GB-809654-A (GB)
Title: 3:10-di-(4-carboxybutyl)-1:2:6:7-tetrathiacyclodiene and its salts and esters
IPC: C07D341/00
Filed: 1955-08-25
Abstract: The invention comprises the acid of the formula <FORM:0809654/IV (b)/1> and its salts and esters and their preparation by treating 6 : 61 - dithio - bis - (8 - thioloctanoic acid) or 8 : 81 - dithio - bis - (6 - thioloctanoic acid) or an alkyl ester thereof with a mild oxidizing agent such as a mixture of potassium iodide and iodine, preferably in an inert liquid reaction medium comprising a solvent such as methanol, ethanol, isopropanol, propanol, chloroform, ethyl acetate or butyl acetate. The esters may also be made by treating the acid with an equimolar quantity of a diazoalkane in ether.  Salts are prepared by treating the acid with alkali metal or alkaline-earth metal carbonates, bicarbonates or hydroxides.  The compounds are used as substitutes for a -lipoic acid.  In an example, 6 : 61-dithio-bis - (8 - thioloctanoic acid) in chloroform, is treated with an aqueous solution of iodine and potassium iodide to give 3 : 10-di-(41-carboxybutyl) - 1 : 2 : 6 : 7 - tetrathiacyclo decane. Starting materials.  6 : 61 - Dithio - bis - (8-thioloctanoi acid) is made by treating 7-carbethoxy - 2 - heptenoic acid with thioacetic acid to obtain 3-acetylthio-7-carbethoxy heptanoic acid; reacting this with thionyl chloride to give 3-acetylthio-7-carbethoxy heptanoyl chloride; reducing with sodium borohydride to yield ethyl - 6 - acetylthio - 8 - hydroxyoctanoate; refluxing with sodium hydroxide in the presence of a trace of zinc dust to give 6 - thiol - 8 - hydroxyoctanoic acid; oxidizing with aqueous iodine-potassium iodide to give 6 : 61 - dithio - bis - (8 - hydroxyoctanoic acid) and condensing with thiourea to form a 6 : 61-dithio - bis }8 - [2(2 - thiopseudoureido)] - octanoic acid} which is hydrolysed to the desired bis-8-thiol.
Patent GB-954031-A (GB)
Title: Improvements in or relating to power presses
Inventor: SHARMAN JOHN CHARLES
IPC: B30B1/16
Filed: 1959-07-17
Abstract: 954,031. Forging presses; forging turbine blades. GARRINGTONS Ltd. July 20, 1960 [July 17, 1959], No. 24561/59. Headings B3A and B3H. A fluid-actuated power press has a main ram 12 for forging a blank between dies 10, 11 and a side ram 21, Fig. 2, for upsetting the blank. In the manufacture of gas turbine blades the blade portion is forged between a fixed die 10 and a movable lower die 11 secured to the main ram 12. The latter is guided by four vertical pillars 14, 16 and actuated through toggle linkage 31, 32 by a piston 19 in an hydraulic or pneumatic cylinder 18. Linkage 36-39 and 44 ensures vertical movement of the ram to avoid lateral thrust on the pillars. Side ram 21 which is used for upsetting a shoulder or root on the blank, has a block 22 pivoted on pillar 14 for swing- ing out into an inoperative position and is lockable in its operative position by a bolt 30. The block carries a ram piston 25 working in an hydraulic or pneumatic cylinder 24. Side rams may be fitted on both sides of the main ram for upsetting both a root and shoulder on the blade blank.
Patent GB-191782-A (GB)
Title: Improvements in and relating to generators, switches, batteries, and wiring systems of electric lighting sets for motor vehicles and the like
IPC: B60R16/023
Filed: 1921-09-16
Abstract: 191,782. Nichotas, W. J., and Roberts, P. J. W. Sept. 16, 1921. Coils and conductors; brush-holders; casings.- An electric lighting system for motor vehicles comprises a generator driven from the engine, battery, automatic cut-out and a distribution board. Fig. 9 illustrates the generator field windings a<4> extending over the pole tips a<3> to improve ventilation and maintain the fixed brush position. Fig. 10 illustrates the generator brushes a<12> carried on supports a<14> and pressed on the commutator a<1> by springs a<19> which are connected to the brush fingers a<16>.
Patent GB-787527-A (GB)
Title: Saw sharpening machine
IPC: B23D63/10
Filed: 1955-08-26
Abstract: 787,527. Reciprocatory filing. SANDMAN, O. Aug. 26, 1955, No. 24625/55. Class 83 (3). A machine for sharpening saws, such as a circular-saw 42, comprises files 20, 21, 22, 23 reciprocated along bars 16, 17 by cranks 14, 15, the bars being carried by a beam 8 supported by a crossbeam 7, and a lever 40 for moving the crossbeam along vertical uprights 2 against the force of a spring 6. Each pair of files embraces a tooth of the saw 42 and is carried by supports 18, 24, 19, 25 on the bars 16, 17 which are adjustable vertically by screws engaging holes 27, 33. One end of each bar is also adjustable horizontally by means 31, 32. Movement of the lever 40 connected to lever-arms 35 feeds the files downwardly to make the cut. The saw is indexed two teeth at a time, or one tooth at a time if only one file is carried on each bar.
Patent GB-1315548-A (GB)
Title: Stabilized nickel plating compositions
IPC: C23C18/34
Filed: 1970-05-21
Abstract: 1315548 Electroless nickel plating baths SCHERING AG 21 May 1970 [22 May 1969] 24645/70 Heading C7F An electroless, aqueous, nickel plating bath comprises a nickel salt, e.g. chloride, sulphate or acetate, a reducing agent, a complex former and a selenium compound in which the selenium has an oxidation degree of "minus 1" or "minus 2". The specification discibes many selenium compounds and they maybe used in a concentration of 0À0001 to 0À3g/l. The reducing agent may be sodium hypophosphite, hydrazine, aborozane or sodium borohydride in a concentration from 0À01 to 0À5 mole/l. The concentration of the nickel salt may be 0À01 to 0À5 moles /1. Salts of other metals, e.g. Co, may be included in the bath. The substrate may be a metal or synthetic resin, first contacted with chromic-sulphuric acid mixture and then tin and palladium chlorides. The complex former may be lactic acid, glycine, sodium acetate, trisodium citrate, or triethanolamine.
Patent GB-934734-A (GB)
Title: Improvements relating to the purification of organic solvents containing fission products
Inventor: HARTLEY KENNETH
IPC: G21C19/46
Filed: 1961-07-07
Abstract: <PICT:0934734/III/1> Organic solvents used in the processing of irradiated nuclear fuel products, are regenerated and freed from fissile and fertile materials by treating with nascent-hydrogen, and then extracting the material with an aqueous solvent, e.g. dilute H2SO4.  In an example, a solvent mixture, tributyl phosphate and kerosene containing Ru, Nb, and Zr values is admitted through a pipe 15 to a mixing chamber 11 containing sulphuric acid.  A current passes between a platinum anode spiral 19 and a mercury pool cathode 21, generating nascent-hydrogen.  By agitation, an emulsion layer 22 is formed, and the aqueous phase cycles through a lower port 14 into the outer settling chamber 12, and re-enters the mixing chamber through an upper port 13.  The aqueous extract is drawn off from time to time through a suction device 23, and the regenerated solvent through a pipe 16.  This may be re-cycled and given a final wash with sodium carbonate solution.  Alternatively, hydrogen may be generated by a zinc-mercury couple and an acid electrolyte.
Patent GB-1143578-A (GB)
Title: Edible products
Inventor: SHRINATH SHESHGIRI KALBAG
IPC: A21D2/14
Filed: 1965-06-11
Abstract: 1,143,578. Dry food mixes. UNILEVER Ltd. 9 June, 1966 [11 June, 1965], No. 24701/65. Heading A2B. A dry food mix contains cereal flour and 1-15% by weight of leavening ingredients comprising an alkaline earth metal carbonate (e.g. calcium carbonate) and an organic acid (e.g. citric or tartaric acid) which will react with the carbonate on the addition of water to generate carbon dioxide. The mix may be a self-raising flour or may be one used for making bread, biscuits, cakes, pizza or Indian products known as idli, dosa and vada. In the examples the mixes comprise (1, 2, 3) urid dal, rice flour, glyceryl monostearate, calcium carbonate, citric acid, sodium chloride and water, (4) wheat flour, salt, calcium carbonate and citric acid, (5) wheat flour, shortening, skim milk powder, sucrose, salt, calcium carbonate and citric acid and (6) wheat flour, sugar, shortening, dried egg powder, calcium carbonate, citric acid and milk. The batter obtained from the mix of Example (2) may be used to coat diced vegetables, cheese and onion shreds.
Patent GB-1128724-A (GB)
Title: Process for producing crystalline homopolymers or copolymers of olefin
IPC: C08F10/00
Filed: 1967-05-26
Abstract: 1,128,724. Polymerization catalysts for olefins. MITSUBISHI PETROCHEMICAL CO. Ltd. 26 May, 1967 [30 May, 1966; 27 March, 1967], No. 24710/67. Heading C3P. A polymerization catalyst system comprises (1) an organometallic compound of a metal of Groups I, II and III of the Periodic Table of Elements; (2) a halide of a transition metal of Groups IV, V and VI of the Periodic Table; and (3) an aromatic compound of the general formula where X, Y and Z represent hydrogen, halegon, a C1 to 5 aliphatic residue, phenyl, tolyl, alkoxy, amino, nitro, and wherein R<SP>1</SP> represents hydrogen, a C 1-8  aliphatic residue, phenyl or tolyl, and R is a group selected from -OR<SP>2</SP>, -NR<SP>3</SP>R<SP>4</SP>, and -SR<SP>5</SP> (wherein R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> represent hydrogen, a C 1-5  aliphatic residue, phenyl or tolyl, and R<SP>5</SP> represents a C 1-8  aliphatic residue, phenyl or tolyl), and aliphatic residues containing 1 to 8 carbon atoms. Compound (3) is selected from benzoates, substituted benzoates, alkyl and alkylene phenyl ketones, aromatic amides, and aromatic thiol esters. A large number of these compounds are specified and exemplified. The catalyst is used for polymerizing mono-olefins. Specified mono-olefins are ethylene, propylene, 1-butene, 1-pentene, 4 - methyl - 1 - pentene, 1 - hexene, styrene, and mixtures e.g. propylene/ethylene, propylene/butene, propylene/styrene, and propylene/4 - methyl - 1 - pentene. The polymerization is preferably effected in a hydrocarbon diluent. The polymers are recovered by conventional techniques and the product fractionated by solvent extraction.